C-329/23Sozialversicherungsanstalt der Selbständigen v W M

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Reference for a preliminary ruling – Migrant workers – Social security – Legislation applicable – Regulation (EEC) No 1408/71 – Articles 13 and 14a – Regulation (EC) No 883/2004 – Article 11 and Article 13(2) – Worker simultaneously pursuing an activity as a self-employed person in the territory of two or more States, including a Member State of the European Union, a State of the European Free Trade Association, which is a party to the Agreement on the European Economic Area, and the Swiss Confederation – Article 87(8) – Concept of ‘relevant situation’ – Agreement on the European Economic Area – Agreement between the European Community and its Member States, of the one part, and the Swiss Confederation, of the other, on the free movement of persons.

Interprets